LOS ANGELES--(BUSINESS WIRE)--Small businesses are seeking and receiving growth capital at the highest rate since 2012 according to results of the latest Dun & Bradstreet and Pepperdine Private Capital Access (PCA) Index. The quarterly study measures the accessibility and demand for capital among the nation’s small and mid-sized businesses. Demand for capital by small businesses (those with less than $5 million in revenues) increased 9.1% since Q1 2015, hitting the highest level since Q4 20